It has been proved that Low Till Farming increases harvests and reduces water use, and this method reduced the need for chemical products because there are fewer unwanted plants.
实践证明，低耕农业提高了作物产量，减少了用水量；而且，由于有害植物变少了，这种农业对化工产品的需求也降低了。
The use and production method of some urea downstream products which have broad market prospects are introduced.
介绍了几种具有广阔市场前景的尿素下游产品的用途、生产方法及国内外生产情况。
Packaging designing requires a familiarity with products including the physical performances, method for use and detailed information of sales promotion.
包装设计必须熟悉产品才能研究出正确的包装，包括产品的物理性能、使用方法和详细的促销信息。
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